![Amazon.com: Harmony Audio HA-ML182 Monolith 18" Car Stereo Competition SPL Sub 3500W Dual 2 Ohm Subwoofer : Electronics Amazon.com: Harmony Audio HA-ML182 Monolith 18" Car Stereo Competition SPL Sub 3500W Dual 2 Ohm Subwoofer : Electronics](https://m.media-amazon.com/images/I/814HFaW7Q9L.jpg)
Amazon.com: Harmony Audio HA-ML182 Monolith 18" Car Stereo Competition SPL Sub 3500W Dual 2 Ohm Subwoofer : Electronics
![Amazon.com: Skar Audio ZVX-18v2 D2 18" 3200 Watt Max Power Dual 2 Ohm SPL Car Subwoofer : Electronics Amazon.com: Skar Audio ZVX-18v2 D2 18" 3200 Watt Max Power Dual 2 Ohm SPL Car Subwoofer : Electronics](https://m.media-amazon.com/images/I/71NQTmm10BL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Skar Audio ZVX-18v2 D2 18" 3200 Watt Max Power Dual 2 Ohm SPL Car Subwoofer : Electronics
![Amazon.com: CT Sounds TROPO-18-D2 18 Inch Car Subwoofer Dual 2 Ohm, 1300 Watts Max : Everything Else Amazon.com: CT Sounds TROPO-18-D2 18 Inch Car Subwoofer Dual 2 Ohm, 1300 Watts Max : Everything Else](https://m.media-amazon.com/images/I/71z+OW68GeL.jpg)
Amazon.com: CT Sounds TROPO-18-D2 18 Inch Car Subwoofer Dual 2 Ohm, 1300 Watts Max : Everything Else
![L-8028 Dual 18 inch High Power Pro Subwoofer Box - Buy 18 inch subwoofer, high power subwoofer, s8028 subwoofer speaker Product on Sanway Professional Audio Equipment Co., Ltd. L-8028 Dual 18 inch High Power Pro Subwoofer Box - Buy 18 inch subwoofer, high power subwoofer, s8028 subwoofer speaker Product on Sanway Professional Audio Equipment Co., Ltd.](https://ijrnrwxhpnnk5p.leadongcdn.com/cloud/jrBooKqjSRlqjokoj/L8028.jpg)